prove te following. 1+tan²∅/tan²∅=cosec²∅
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L.H.S
1+tan^2thita/tan^2thita
=1/tan^2thita+1
= cot^2thita+1 (we know that 1+cot^2thita=cosec^2thita)
=cosec^2thita. R.H.S (proved)
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